I'm working on building our email template within the Responsive templates inside HubSpot. We used to use MailChimp and I've done very minimal custom coding, so this is a bit frustrating but interesting at the same time!
I'm getting extremely close to finalizing our template with one of the last parts being how to center an image module. Right now the image is in the top left it looks like when I need it centered both vertically and horizontally.
Screenshot:
Here's what the backend looks like layout wise for this group: